I'm working on rendering a buffer using SharpDX in a WPF application. I've created a WindowRenderTarget and I'm drawing a SharpDX Bitmap to it. Everything is working fine, but I'm facing an issue: the buffer is being rendered on the entire window, whereas I need it to be rendered onto a specific element within the window. How can I achieve rendering to a specific element using SharpDX in WPF?
Here's the code I'm using to rendering:
private void InitializeDirect2D()
{
var hwnd = ((HwndSource)PresentationSource.FromVisual(image)).Handle;
var factory = new SharpDX.Direct2D1.Factory1(FactoryType.MultiThreaded);
var renderProps = new HwndRenderTargetProperties
{
Hwnd = hwnd,
PixelSize = new Size2((int)ActualWidth, (int)ActualHeight),
PresentOptions = PresentOptions.Immediately
};
var renderTargetProperties = new RenderTargetProperties
{
DpiX = 96,
DpiY = 96,
MinLevel = FeatureLevel.Level_DEFAULT,
Type = RenderTargetType.Hardware,
Usage = RenderTargetUsage.None
};
properties = new BitmapProperties(new SharpDX.Direct2D1.PixelFormat(Format.B8G8R8A8_UNorm, SharpDX.Direct2D1.AlphaMode.Premultiplied));
renderTarget = new WindowRenderTarget(factory, renderTargetProperties, renderProps);
}
public void DrawBitmap()
{
int width = frame.width;
int height = frame.height;
int stride = width * 4;
IntPtr buffer = (IntPtr)frame.data[0];
using (var stream = new DataStream(buffer, stride * height, true, false))
{
var bitmap = new SharpDX.Direct2D1.Bitmap(renderTarget, new Size2(width, height), stream, stride, properties);
renderTarget.BeginDraw();
RawColor4 clearColor = new RawColor4(255, 255, 255, 255);
renderTarget.Clear(clearColor);
renderTarget.DrawBitmap(bitmap, 1.0f, SharpDX.Direct2D1.BitmapInterpolationMode.Linear);
renderTarget.EndDraw();
bitmap.Dispose();
}
}
The above code works, but it renders the buffer across the entire window. Is there a way to target a specific element (e.g., a Canvas or an Image control) within the window so that the rendering is confined to that element only?
Thank you! ``